diff --git a/app/src/control_msg.c b/app/src/control_msg.c
index 75c74628..d093183a 100644
--- a/app/src/control_msg.c
+++ b/app/src/control_msg.c
@@ -89,7 +89,7 @@ to_fixed_point_16(float f) {
 }
 
 size_t
-control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
+sc_control_msg_serialize(const struct sc_control_msg *msg, unsigned char *buf) {
     buf[0] = msg->type;
     switch (msg->type) {
         case CONTROL_MSG_TYPE_INJECT_KEYCODE:
@@ -151,7 +151,7 @@ control_msg_serialize(const struct control_msg *msg, unsigned char *buf) {
 }
 
 void
-control_msg_log(const struct control_msg *msg) {
+sc_control_msg_log(const struct sc_control_msg *msg) {
 #define LOG_CMSG(fmt, ...) LOGV("input: " fmt, ## __VA_ARGS__)
     switch (msg->type) {
         case CONTROL_MSG_TYPE_INJECT_KEYCODE:
@@ -237,7 +237,7 @@ control_msg_log(const struct control_msg *msg) {
 }
 
 void
-control_msg_destroy(struct control_msg *msg) {
+sc_control_msg_destroy(struct sc_control_msg *msg) {
     switch (msg->type) {
         case CONTROL_MSG_TYPE_INJECT_TEXT:
             free(msg->inject_text.text);
diff --git a/app/src/control_msg.h b/app/src/control_msg.h
index 0eadd4f2..2ac96064 100644
--- a/app/src/control_msg.h
+++ b/app/src/control_msg.h
@@ -20,7 +20,7 @@
 #define POINTER_ID_MOUSE UINT64_C(-1)
 #define POINTER_ID_VIRTUAL_FINGER UINT64_C(-2)
 
-enum control_msg_type {
+enum sc_control_msg_type {
     CONTROL_MSG_TYPE_INJECT_KEYCODE,
     CONTROL_MSG_TYPE_INJECT_TEXT,
     CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
@@ -47,8 +47,8 @@ enum get_clipboard_copy_key {
     GET_CLIPBOARD_COPY_KEY_CUT,
 };
 
-struct control_msg {
-    enum control_msg_type type;
+struct sc_control_msg {
+    enum sc_control_msg_type type;
     union {
         struct {
             enum android_keyevent_action action;
@@ -93,12 +93,12 @@ struct control_msg {
 // buf size must be at least CONTROL_MSG_MAX_SIZE
 // return the number of bytes written
 size_t
-control_msg_serialize(const struct control_msg *msg, unsigned char *buf);
+sc_control_msg_serialize(const struct sc_control_msg *msg, unsigned char *buf);
 
 void
-control_msg_log(const struct control_msg *msg);
+sc_control_msg_log(const struct sc_control_msg *msg);
 
 void
-control_msg_destroy(struct control_msg *msg);
+sc_control_msg_destroy(struct sc_control_msg *msg);
 
 #endif
diff --git a/app/src/controller.c b/app/src/controller.c
index 531b5fb9..9135d967 100644
--- a/app/src/controller.c
+++ b/app/src/controller.c
@@ -38,9 +38,9 @@ sc_controller_destroy(struct sc_controller *controller) {
     sc_cond_destroy(&controller->msg_cond);
     sc_mutex_destroy(&controller->mutex);
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     while (cbuf_take(&controller->queue, &msg)) {
-        control_msg_destroy(&msg);
+        sc_control_msg_destroy(&msg);
     }
 
     receiver_destroy(&controller->receiver);
@@ -48,9 +48,9 @@ sc_controller_destroy(struct sc_controller *controller) {
 
 bool
 sc_controller_push_msg(struct sc_controller *controller,
-                       const struct control_msg *msg) {
+                       const struct sc_control_msg *msg) {
     if (sc_get_log_level() <= SC_LOG_LEVEL_VERBOSE) {
-        control_msg_log(msg);
+        sc_control_msg_log(msg);
     }
 
     sc_mutex_lock(&controller->mutex);
@@ -64,9 +64,10 @@ sc_controller_push_msg(struct sc_controller *controller,
 }
 
 static bool
-process_msg(struct sc_controller *controller, const struct control_msg *msg) {
+process_msg(struct sc_controller *controller,
+            const struct sc_control_msg *msg) {
     static unsigned char serialized_msg[CONTROL_MSG_MAX_SIZE];
-    size_t length = control_msg_serialize(msg, serialized_msg);
+    size_t length = sc_control_msg_serialize(msg, serialized_msg);
     if (!length) {
         return false;
     }
@@ -89,14 +90,14 @@ run_controller(void *data) {
             sc_mutex_unlock(&controller->mutex);
             break;
         }
-        struct control_msg msg;
+        struct sc_control_msg msg;
         bool non_empty = cbuf_take(&controller->queue, &msg);
         assert(non_empty);
         (void) non_empty;
         sc_mutex_unlock(&controller->mutex);
 
         bool ok = process_msg(controller, &msg);
-        control_msg_destroy(&msg);
+        sc_control_msg_destroy(&msg);
         if (!ok) {
             LOGD("Could not write msg to socket");
             break;
diff --git a/app/src/controller.h b/app/src/controller.h
index 06ceb782..f8bc7c02 100644
--- a/app/src/controller.h
+++ b/app/src/controller.h
@@ -12,7 +12,7 @@
 #include "util/net.h"
 #include "util/thread.h"
 
-struct sc_control_msg_queue CBUF(struct control_msg, 64);
+struct sc_control_msg_queue CBUF(struct sc_control_msg, 64);
 
 struct sc_controller {
     sc_socket control_socket;
@@ -42,6 +42,6 @@ sc_controller_join(struct sc_controller *controller);
 
 bool
 sc_controller_push_msg(struct sc_controller *controller,
-                       const struct control_msg *msg);
+                       const struct sc_control_msg *msg);
 
 #endif
diff --git a/app/src/input_manager.c b/app/src/input_manager.c
index 5b355701..9eee6e6c 100644
--- a/app/src/input_manager.c
+++ b/app/src/input_manager.c
@@ -160,7 +160,7 @@ static void
 send_keycode(struct sc_controller *controller, enum android_keycode keycode,
              enum sc_action action, const char *name) {
     // send DOWN event
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
     msg.inject_keycode.action = action == SC_ACTION_DOWN
                               ? AKEY_EVENT_ACTION_DOWN
@@ -214,7 +214,7 @@ action_menu(struct sc_controller *controller, enum sc_action action) {
 static void
 press_back_or_turn_screen_on(struct sc_controller *controller,
                              enum sc_action action) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON;
     msg.back_or_screen_on.action = action == SC_ACTION_DOWN
                                  ? AKEY_EVENT_ACTION_DOWN
@@ -227,7 +227,7 @@ press_back_or_turn_screen_on(struct sc_controller *controller,
 
 static void
 expand_notification_panel(struct sc_controller *controller) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL;
 
     if (!sc_controller_push_msg(controller, &msg)) {
@@ -237,7 +237,7 @@ expand_notification_panel(struct sc_controller *controller) {
 
 static void
 expand_settings_panel(struct sc_controller *controller) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL;
 
     if (!sc_controller_push_msg(controller, &msg)) {
@@ -247,7 +247,7 @@ expand_settings_panel(struct sc_controller *controller) {
 
 static void
 collapse_panels(struct sc_controller *controller) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_COLLAPSE_PANELS;
 
     if (!sc_controller_push_msg(controller, &msg)) {
@@ -258,7 +258,7 @@ collapse_panels(struct sc_controller *controller) {
 static bool
 get_device_clipboard(struct sc_controller *controller,
                      enum get_clipboard_copy_key copy_key) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_GET_CLIPBOARD;
     msg.get_clipboard.copy_key = copy_key;
 
@@ -286,7 +286,7 @@ set_device_clipboard(struct sc_controller *controller, bool paste,
         return false;
     }
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_SET_CLIPBOARD;
     msg.set_clipboard.sequence = sequence;
     msg.set_clipboard.text = text_dup;
@@ -304,7 +304,7 @@ set_device_clipboard(struct sc_controller *controller, bool paste,
 static void
 set_screen_power_mode(struct sc_controller *controller,
                       enum screen_power_mode mode) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE;
     msg.set_screen_power_mode.mode = mode;
 
@@ -349,7 +349,7 @@ clipboard_paste(struct sc_controller *controller) {
         return;
     }
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
     msg.inject_text.text = text_dup;
     if (!sc_controller_push_msg(controller, &msg)) {
@@ -360,7 +360,7 @@ clipboard_paste(struct sc_controller *controller) {
 
 static void
 rotate_device(struct sc_controller *controller) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_ROTATE_DEVICE;
 
     if (!sc_controller_push_msg(controller, &msg)) {
@@ -406,7 +406,7 @@ simulate_virtual_finger(struct sc_input_manager *im,
                         struct sc_point point) {
     bool up = action == AMOTION_EVENT_ACTION_UP;
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT;
     msg.inject_touch_event.action = action;
     msg.inject_touch_event.position.screen_size = im->screen->frame_size;
diff --git a/app/src/keyboard_inject.c b/app/src/keyboard_inject.c
index 9c141a37..7276d325 100644
--- a/app/src/keyboard_inject.c
+++ b/app/src/keyboard_inject.c
@@ -246,7 +246,7 @@ convert_meta_state(uint16_t mod) {
 }
 
 static bool
-convert_input_key(const struct sc_key_event *event, struct control_msg *msg,
+convert_input_key(const struct sc_key_event *event, struct sc_control_msg *msg,
                   enum sc_key_inject_mode key_inject_mode, uint32_t repeat) {
     msg->type = CONTROL_MSG_TYPE_INJECT_KEYCODE;
 
@@ -282,7 +282,7 @@ sc_key_processor_process_key(struct sc_key_processor *kp,
         ki->repeat = 0;
     }
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     if (convert_input_key(event, &msg, ki->key_inject_mode, ki->repeat)) {
         if (!sc_controller_push_msg(ki->controller, &msg)) {
             LOGW("Could not request 'inject keycode'");
@@ -309,7 +309,7 @@ sc_key_processor_process_text(struct sc_key_processor *kp,
         }
     }
 
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
     msg.inject_text.text = strdup(event->text);
     if (!msg.inject_text.text) {
diff --git a/app/src/mouse_inject.c b/app/src/mouse_inject.c
index 106c215f..855aaa9f 100644
--- a/app/src/mouse_inject.c
+++ b/app/src/mouse_inject.c
@@ -65,7 +65,7 @@ sc_mouse_processor_process_mouse_motion(struct sc_mouse_processor *mp,
 
     struct sc_mouse_inject *mi = DOWNCAST(mp);
 
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
         .inject_touch_event = {
             .action = AMOTION_EVENT_ACTION_MOVE,
@@ -86,7 +86,7 @@ sc_mouse_processor_process_mouse_click(struct sc_mouse_processor *mp,
                                     const struct sc_mouse_click_event *event) {
     struct sc_mouse_inject *mi = DOWNCAST(mp);
 
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
         .inject_touch_event = {
             .action = convert_mouse_action(event->action),
@@ -107,7 +107,7 @@ sc_mouse_processor_process_mouse_scroll(struct sc_mouse_processor *mp,
                                    const struct sc_mouse_scroll_event *event) {
     struct sc_mouse_inject *mi = DOWNCAST(mp);
 
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
         .inject_scroll_event = {
             .position = event->position,
@@ -127,7 +127,7 @@ sc_mouse_processor_process_touch(struct sc_mouse_processor *mp,
                                  const struct sc_touch_event *event) {
     struct sc_mouse_inject *mi = DOWNCAST(mp);
 
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
         .inject_touch_event = {
             .action = convert_touch_action(event->action),
diff --git a/app/src/scrcpy.c b/app/src/scrcpy.c
index e1869eec..86fdf984 100644
--- a/app/src/scrcpy.c
+++ b/app/src/scrcpy.c
@@ -558,7 +558,7 @@ aoa_hid_end:
         controller_started = true;
 
         if (options->turn_screen_off) {
-            struct control_msg msg;
+            struct sc_control_msg msg;
             msg.type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE;
             msg.set_screen_power_mode.mode = SCREEN_POWER_MODE_OFF;
 
diff --git a/app/tests/test_control_msg_serialize.c b/app/tests/test_control_msg_serialize.c
index d1f0f161..95a54a98 100644
--- a/app/tests/test_control_msg_serialize.c
+++ b/app/tests/test_control_msg_serialize.c
@@ -6,7 +6,7 @@
 #include "control_msg.h"
 
 static void test_serialize_inject_keycode(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_KEYCODE,
         .inject_keycode = {
             .action = AKEY_EVENT_ACTION_UP,
@@ -17,7 +17,7 @@ static void test_serialize_inject_keycode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 14);
 
     const unsigned char expected[] = {
@@ -31,7 +31,7 @@ static void test_serialize_inject_keycode(void) {
 }
 
 static void test_serialize_inject_text(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_TEXT,
         .inject_text = {
             .text = "hello, world!",
@@ -39,7 +39,7 @@ static void test_serialize_inject_text(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 18);
 
     const unsigned char expected[] = {
@@ -51,7 +51,7 @@ static void test_serialize_inject_text(void) {
 }
 
 static void test_serialize_inject_text_long(void) {
-    struct control_msg msg;
+    struct sc_control_msg msg;
     msg.type = CONTROL_MSG_TYPE_INJECT_TEXT;
     char text[CONTROL_MSG_INJECT_TEXT_MAX_LENGTH + 1];
     memset(text, 'a', CONTROL_MSG_INJECT_TEXT_MAX_LENGTH);
@@ -59,7 +59,7 @@ static void test_serialize_inject_text_long(void) {
     msg.inject_text.text = text;
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH);
 
     unsigned char expected[5 + CONTROL_MSG_INJECT_TEXT_MAX_LENGTH];
@@ -74,7 +74,7 @@ static void test_serialize_inject_text_long(void) {
 }
 
 static void test_serialize_inject_touch_event(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_TOUCH_EVENT,
         .inject_touch_event = {
             .action = AMOTION_EVENT_ACTION_DOWN,
@@ -95,7 +95,7 @@ static void test_serialize_inject_touch_event(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 28);
 
     const unsigned char expected[] = {
@@ -111,7 +111,7 @@ static void test_serialize_inject_touch_event(void) {
 }
 
 static void test_serialize_inject_scroll_event(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_INJECT_SCROLL_EVENT,
         .inject_scroll_event = {
             .position = {
@@ -131,7 +131,7 @@ static void test_serialize_inject_scroll_event(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 25);
 
     const unsigned char expected[] = {
@@ -146,7 +146,7 @@ static void test_serialize_inject_scroll_event(void) {
 }
 
 static void test_serialize_back_or_screen_on(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_BACK_OR_SCREEN_ON,
         .back_or_screen_on = {
             .action = AKEY_EVENT_ACTION_UP,
@@ -154,7 +154,7 @@ static void test_serialize_back_or_screen_on(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 2);
 
     const unsigned char expected[] = {
@@ -165,12 +165,12 @@ static void test_serialize_back_or_screen_on(void) {
 }
 
 static void test_serialize_expand_notification_panel(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_EXPAND_NOTIFICATION_PANEL,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -180,12 +180,12 @@ static void test_serialize_expand_notification_panel(void) {
 }
 
 static void test_serialize_expand_settings_panel(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_EXPAND_SETTINGS_PANEL,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -195,12 +195,12 @@ static void test_serialize_expand_settings_panel(void) {
 }
 
 static void test_serialize_collapse_panels(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_COLLAPSE_PANELS,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {
@@ -210,7 +210,7 @@ static void test_serialize_collapse_panels(void) {
 }
 
 static void test_serialize_get_clipboard(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_GET_CLIPBOARD,
         .get_clipboard = {
             .copy_key = GET_CLIPBOARD_COPY_KEY_COPY,
@@ -218,7 +218,7 @@ static void test_serialize_get_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 2);
 
     const unsigned char expected[] = {
@@ -229,7 +229,7 @@ static void test_serialize_get_clipboard(void) {
 }
 
 static void test_serialize_set_clipboard(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_SET_CLIPBOARD,
         .set_clipboard = {
             .sequence = UINT64_C(0x0102030405060708),
@@ -239,7 +239,7 @@ static void test_serialize_set_clipboard(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 27);
 
     const unsigned char expected[] = {
@@ -253,7 +253,7 @@ static void test_serialize_set_clipboard(void) {
 }
 
 static void test_serialize_set_clipboard_long(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_SET_CLIPBOARD,
         .set_clipboard = {
             .sequence = UINT64_C(0x0102030405060708),
@@ -268,7 +268,7 @@ static void test_serialize_set_clipboard_long(void) {
     msg.set_clipboard.text = text;
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == CONTROL_MSG_MAX_SIZE);
 
     unsigned char expected[CONTROL_MSG_MAX_SIZE] = {
@@ -287,7 +287,7 @@ static void test_serialize_set_clipboard_long(void) {
 }
 
 static void test_serialize_set_screen_power_mode(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_SET_SCREEN_POWER_MODE,
         .set_screen_power_mode = {
             .mode = SCREEN_POWER_MODE_NORMAL,
@@ -295,7 +295,7 @@ static void test_serialize_set_screen_power_mode(void) {
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 2);
 
     const unsigned char expected[] = {
@@ -306,12 +306,12 @@ static void test_serialize_set_screen_power_mode(void) {
 }
 
 static void test_serialize_rotate_device(void) {
-    struct control_msg msg = {
+    struct sc_control_msg msg = {
         .type = CONTROL_MSG_TYPE_ROTATE_DEVICE,
     };
 
     unsigned char buf[CONTROL_MSG_MAX_SIZE];
-    size_t size = control_msg_serialize(&msg, buf);
+    size_t size = sc_control_msg_serialize(&msg, buf);
     assert(size == 1);
 
     const unsigned char expected[] = {